cop an attitude
slang To act irritably. Don't cop an attitude with me, young lady, or I'll take away your allowance! All of a sudden, John copped an attitude—I guess he was unhappy with the change in plans.
cop an attitude
Sl. to take a negative or opposite attitude about something. My teenage son copped an attitude when I asked why he seemed to be sneaking around.
cop an attitude
tv. to take a negative or opposite attitude about something. (see also tude.) I think you’re copping an attitude. Not advised, dude. Not advised.